Reduced-Size LHD-Type Fusion Reactor with D-Shaped Magnetic Surface

Tsuguhiro WATANABE
2012 Plasma and Fusion Research  
A new winding law for the continuous helical coils is proposed for Large Helical Device (LHD) type fusion reactors to satisfy the requirements for a wide blanket space and large plasma volume. Helical coils wound along the geodesic line of a torus with an elongated cross section can produce a magnetic configuration having a D-shaped magnetic surface with a magnetic well in the core region and high magnetic shear in the peripheral regions. The DT alpha particle confinement performance is greatly
more » ... improved by increasing the elongation factor κ of the cross section of the winding frame for the helical coils. The results suggest that a smaller LHD-type fusion reactor can be realized.
doi:10.1585/pfr.7.2403113 fatcat:475ydfp7uvfmxpjkjv3gskwa5y